The general assembly hereby finds and declares that certain lands and waters of this state representing diverse ecosystems, ecological communities, and other natural features or phenomena, which are our natural heritage, are increasingly threatened with irreversible change and are in need of special identification and protection and that it is in the public interest of present and future generations to preserve, protect, perpetuate, and enhance specific examples of these natural features and phenomena as an enduring resource. It is the intent of this article to provide a means by which these natural features and phenomena can be identified, evaluated, and protected through a statewide system of designated natural areas.